Quran 66, At-Tahrim (Forbiddance) ⓘ

66:4If ye twain turn unto Allah repentant, (ye have cause to do so) for your hearts desired (the ban); and if ye aid one another against him (Muhammad) then lo! Allah, even He, is his Protecting Friend, and Gabriel and the righteous among the believers; and furthermore the angels are his helpers.

إِنْ تَتُوبَا إِلَى اللَّهِ فَقَدْ صَغَتْ قُلُوبُكُمَا وَإِنْ تَظَاهَرَا عَلَيْهِ فَإِنَّ اللَّهَ هُوَ مَوْلَاهُ وَجِبْرِيلُ وَصَالِحُ الْمُؤْمِنِينَ وَالْمَلَائِكَةُ بَعْدَ ذَلِكَ ظَهِيرٌ